US2817189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weed-killing spray cane
Assignee: Individual
•
Filing: 1955-02-23
•
Granted: 1957-12-24
•
Expires: 1975-02-23
Abstract
No abstract record available.
Inventors
- 👤 Paul O Esmay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:59
CPC Classifications
A; A01; A01M; A01M21/00; A01M21/04; A01M21/043; Y; Y10; Y10S; Y10S285/00; Y10S285/919
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1836259A
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US1960738A
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US2257919A
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US2245974A
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US2296500A
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US2366067A
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US2577687A
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US2689068A
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FR1039970A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-23 | 1961-06-24 | 1961-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-23 | 1965-06-24 | 1965-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-23 | 1969-06-24 | 1969-12-24 | $7700.00 | Window Closed / Lapsed |